package cn.webrx;

public class C1 {
    public static void main(String... n) {
        var a = 1;
        var b = 2;
        if (n.length == 2) {
            a = Integer.parseInt(n[0]);
            b = Integer.parseInt(n[1]);
        }
        System.out.printf("%2d + %2d = %2d ", a, b, (a + b));
    }
}
